Results 21 to 30 of about 33,346 (265)

Aerodynamic shape optimization of a low drag fairing for small livestock trailers [PDF]

open access: yes, 2008
Small livestock trailers are commonly used to transport animals from farms to market within the United Kingdom. Due to the bluff nature of these vehicles there is great potential for reducing drag with a simple add-on fairing.
Foxley, N.A.   +5 more
core   +1 more source

Hypersonic Vehicle Aerodynamic Optimization Using Field Metamodel-Enhanced Sequential Approximate Optimization

open access: yesInternational Journal of Aerospace Engineering, 2021
Hypersonic vehicle has gained increasing attention due to its high cruise speed and long voyage. In this paper, an enhanced Sequential Approximate Optimization method is proposed for aerodynamic optimization of a hypersonic vehicle.
Wenjie Wang   +5 more
doaj   +1 more source

Cluster-Based Optimization of Cellular Materials and Structures for Crashworthiness [PDF]

open access: yes, 2018
The objective of this work is to establish a cluster-based optimization method for the optimal design of cellular materials and structures for crashworthiness, which involves the use of nonlinear, dynamic finite element models. The proposed method uses a
Detwiler, Duane, Liu, Kai, Tovar, Andres
core   +1 more source

Development and validation of a Database Forensic Metamodel (DBFM). [PDF]

open access: yesPLoS ONE, 2017
Database Forensics (DBF) is a widespread area of knowledge. It has many complex features and is well known amongst database investigators and practitioners.
Arafat Al-Dhaqm   +5 more
doaj   +1 more source

An adaptive metamodel-based global approximation method for black-box type problems

open access: yesAdvances in Mechanical Engineering, 2023
An adaptive metamodel-based global approximation (AMGA) method for solving the global approximation problem of black-box models in large design domain is proposed in this study.
Yin Xiao-liang, Yin ling-peng, Qian Chen
doaj   +1 more source

Overcoming System Complexity using Models and Knowledge Structures. Editorial Introduction to Issue 36 of CSIMQ

open access: yesComplex Systems Informatics and Modeling Quarterly, 2023
Models allow us to simplify reality and give advantages to both decomposition and abstraction. Models can have various forms from textual, tabular, mathematical, and graphical to a combination of these formats.
Erika Nazaruka, Tarmo Robal
doaj   +1 more source

An Actor-Oriented and Architecture-Driven Approach for Spatially Explicit Agent-Based Modeling

open access: yesComplex Systems Informatics and Modeling Quarterly, 2023
Nowadays, there is an increasing need to rapidly build more realistic models to solve environmental problems in an interdisciplinary context. In particular, agent-based and spatial modeling have proven to be useful for understanding land use and land ...
Eric Fotsing   +3 more
doaj   +1 more source

A Metamodel for SDL-2000 in the Context of Metamodelling ULF [PDF]

open access: yes, 2005
Today the syntax of many languages is defined by using context-free grammars. These syntax definitions suffer from a major drawback: grammars do not allow the definition of abstract, reusable concept definitions. Especially in families of related languages, where multiple languages often share the same concepts, this limitation leads to unnecessary ...
Fischer, Joachim   +2 more
openaire   +2 more sources

Metamodel construction for sensitivity analysis

open access: yesESAIM: Proceedings and Surveys, 2017
We propose to estimate a metamodel and the sensitivity indices of a complex model m in the Gaussian regression framework. Our approach combines methods for sensitivity analysis of complex models and statistical tools for sparse non-parametric estimation ...
Huet Sylvie, Taupin Marie-Luce
doaj   +1 more source

Aspect-oriented Metamodelling [PDF]

open access: yesThe Computer Journal, 2003
Summary: This paper shows how techniques devised for aspect-oriented modelling (AOM) can be used for aspect-oriented metamodelling. Metamodelling is an approach to language definition, which has been adopted by industry for defining modelling languages, in particular the Unified Modelling Language (UML), and involves the construction of an object ...
Tony Clark 0001   +2 more
openaire   +2 more sources

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